Workers on average contributed $1,700 of their pretax income into workplace savings accounts, Fidelity report finds.

While most workers continued to contribute to their 401(k) plans in the first quarter, the average contribution was slightly less than the year-earlier period, according to Fidelity Investments.

A full 97 percent of 11.3 million participants in 17,500 corporate defined-contribution plans continued to make contributions this year, according to an analysis released Wednesday, May 13, by the Boston-based fund firm.

Workers on average contributed $1,700 of their pretax income into workplace savings accounts.